#28359D#28359D

#28359D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.1% C 0.168 H 270.7°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#28359D
RGB	rgb(40, 53, 157)
HSL	hsl(233, 59%, 39%)
HSV	hsv(233, 75%, 62%)
CMYK	cmyk(74.5%, 66.2%, 0%, 38.4%)
CIE-LAB	lab(27.93, 31.87, -57.93)
CIE-LCH	lch(27.93, 66.12, 298.82°)
OKLab	oklab(39.15% 0.0021 -0.1675)
OKLCH	oklch(39.15% 0.168 270.7)
XYZ	xyz(8.2319, 5.4308, 32.5062)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28359D #9D9028

analogous

#286F9D #28359D #55289D

triadic

#28359D #9D2835 #359D28

tetradic

#28359D #9D286F #9D9028 #289D55

square

#28359D #9D286F #9D9028 #289D55

split-complementary

#28359D #9D5528 #6F9D28

monochromatic

#0F143B #1C256C #28359D #3647CC #6774D8

Accessibility & contrast

On white

10.07

#28359D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#28359D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28359D

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28359D	#FFFFFF	#000000	##FFFFFF
##28359D	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A0

Deuteranopia (green-blind)

#003C9B

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #28359d;
/* rgb */ color: rgb(40, 53, 157);
/* oklch */ color: oklch(39.1% 0.168 270.7);

Tailwind

colors: {
  custom: {
    50: '#746cbb',
    500: '#28359d',
    950: '#000000',
  },
}

SCSS

$custom: #28359d;
$custom-light: #746cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#28359d",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 157
  },
  "hsl": {
    "h": 233.333,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39148,
    "c": 0.1675,
    "h": 270.7
  },
  "luminance": 0.05432
}

Semantic roles & 50–950 ramp

primary

#28359D

secondary

#BEB462

accent

#D145E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #28359D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →